47831378 has 16 divisors (see below), whose sum is σ = 82810944. Its totient is φ = 20295600.

The previous prime is 47831363. The next prime is 47831389. The reversal of 47831378 is 87313874.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 15500 + ... + 18327.

It is an arithmetic number, because the mean of its divisors is an integer number (5175684).

Almost surely, 2^47831378 is an apocalyptic number.

47831378 is a deficient number, since it is larger than the sum of its proper divisors (34979566).

47831378 is a wasteful number, since it uses less digits than its factorization.

47831378 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33937.

The product of its digits is 112896, while the sum is 41.

The square root of 47831378 is about 6916.0232793130. The cubic root of 47831378 is about 362.9980546661.

The spelling of 47831378 in words is "forty-seven million, eight hundred thirty-one thousand, three hundred seventy-eight".